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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

26

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:28.851 source:map[column:248539 line:1 type:source-location url:https://www.thrillist.com/_next/static/chunks/pages/_app-fe2768ac8a0df8711b35.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:66.829 source:map[type:text value:[unattributed]]] map[reflowTime:33.038 source:map[column:252383 line:0 type:source-location url:https://www.thrillist.com/_next/static/chunks/pages/_app-fe2768ac8a0df8711b35.js urlProvider:network]] map[reflowTime:2.756 source:map[column:791036 line:0 type:source-location url:https://www.thrillist.com/_next/static/chunks/pages/_app-fe2768ac8a0df8711b35.js urlProvider:network]] map[reflowTime:0.504 source:map[column:821135 line:0 type:source-location url:https://www.thrillist.com/_next/static/chunks/pages/_app-fe2768ac8a0df8711b35.js urlProvider:network]] map[reflowTime:28.851 source:map[column:248553 line:0 type:source-location url:https://www.thrillist.com/_next/static/chunks/pages/_app-fe2768ac8a0df8711b35.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Thrillist Itineraries div.UniversalContentCardstyles__UCCImageContainer-sc-zezg1y-3 > a > picture.picture-tag > img
/v1/image/3189278/458x614/flatten;crop;webp=auto;jpeg_qua...56.0 KiB10.2 KiB
How to Spend a Weekend in Yosemite With Kids div.UniversalContentCardstyles__UCCImageContainer-sc-zezg1y-3 > a > picture.picture-tag > img
/v1/image/3201495/232x232/flatten;crop;webp=auto;jpeg_qua...17.1 KiB8.4 KiB
How an Arts and Culture Lover Should Spend Two Days in Santa Ana div.UniversalContentCardstyles__UCCImageContainer-sc-zezg1y-3 > a > picture.picture-tag > img
/v1/image/3205449/232x232/flatten;crop;webp=auto;jpeg_qua...14.7 KiB5.9 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-3-IMG
nodeLabel: How to Have the Best Group Trip Ever in Ann Arbor, Michigan
path: 1,HTML,1,BODY,1,DIV,1,DIV,6,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,PICTURE,3,IMG
selector: div.UniversalContentCardstyles__UCCImageContainer-sc-zezg1y-3 > a > picture.picture-tag > img
snippet: <img class="" src="https://assets3.thrillist.com/v1/image/3205578/600x600/flatten;crop;webp=a…" alt="How to Have the Best Group Trip Ever in Ann Arbor, Michigan" width="300" height="300" style="display:block;height:auto" loading="eager">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 752 ms
URLTime Spent
thrillist.com/752 ms
www.thrillist.com/0.0 ms

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable1.6 s431 ms0.0 ms
www.googletagmanager.com/gtag/destination?id=AW-926030959&cx=c&gtm=4e64k0h21.5 s1.4 s57 ms
www.thrillist.com/_next/static/chunks/framework-65495d36b904136d2d33.js1.1 s901 ms32 ms
www.thrillist.com/920 ms226 ms5.7 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js805 ms671 ms93 ms
/gtm.js?id=GTM-MPCB6D9&gtm_auth=&gtm_preview=&gtm_cookies...739 ms598 ms97 ms
/_next/static/chunks/pages/homepage/thrillist-31666d721b9...686 ms555 ms2.6 ms
www.thrillist.com/_next/static/chunks/pages/_app-fe2768ac8a0df8711b35.js611 ms416 ms193 ms
cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js550 ms328 ms77 ms
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js550 ms439 ms59 ms
www.googletagmanager.com/gtag/js?id=G-08GP3LVJ4D&cx=c&gtm=4e64k0h2382 ms261 ms77 ms
c.amazon-adsystem.com/aax2/apstag.js272 ms133 ms55 ms
btloader.com/tag?o=6315858775244800&upapi=true254 ms216 ms25 ms
pub.doubleverify.com/dvtag/21236410/DV464041/pub.js192 ms131 ms18 ms
www.google-analytics.com/analytics.js145 ms88 ms29 ms
cdn.cookielaw.org/consent/tcf.stub.js143 ms134 ms0.9 ms
www.thrillist.com/_next/static/chunks/main-f2f0eb95362df9119440.js142 ms123 ms18 ms
securepubads.g.doubleclick.net/tag/js/gpt.js133 ms116 ms16 ms
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js90 ms75 ms13 ms
carloforward.com/scripts/5ab3079f55c22f946ddcaf3c0a277f985592.main.js82 ms64 ms17 ms
ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js77 ms47 ms14 ms
config.aps.amazon-adsystem.com/configs/317668 ms61 ms5.0 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation7.6 s
Other1.5 s
Script Parsing & Compilation942 ms
Style & Layout755 ms
Parse HTML & CSS285 ms
Garbage Collection226 ms
Rendering69 ms

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 20.1 KiB
URLTransfer SizeEst Savings
22.9 KiB20.1 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

Layout shift culprits
Optimize DOM size
Font display
LCP breakdown
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 20 user timings
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 20 ms
Server Backend Latencies 160 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 90 ms
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
93

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
SUBSCRIBE a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
What to do on a vacation in Ann Arbor with family and friends, from campus land… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
SHOPPING div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Nothing you can package up in a box compares to these one-of-a-kind experiences. div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
The ultimate weekend of gallery hopping, arthouse flims, and cumbia block parti… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Kayak, kick back on the sand, take a history tour, and eat a huge slice of oran… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Family-friendly hours, plenty of Spice Girls, and, most importantly, no men mak… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Travelers are increasingly dependent on buy-now-pay-later lenders to make trips… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
From Chatbot travel assistants to Instagram reel-generated itineraries, the lat… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
GET READY TO EXPLORE div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > div.Tagstyles__TagContainer-sc-o7ixv6-0
We turn your deepest passions into unforgettable travel experiences.   div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2 > div
READ MORE a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
NEIGHBORHOOD GUIDES a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
MAPS a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Load up on pastries, embrace aperitivo, and dive in to all the risotto and past… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Make the most of a visit to Italy’s design capital, admiring Renaissance painti… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Explore tide pools, feed farm animals, watch elephant seals, and make time for … div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Hike, bike, and explore one of the most beautiful places in the world with the … div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TIPS & HACKS a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
WHAT TO PACK a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
LODGING a > div.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
The RuPaul’s Drag Race winner shares her favorite travel memory, dream cities t… div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Drift down narrow waterways on a small boat in the French countryside, sipping … div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
Big water, big sky, and big family adventures div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
It's also a great way to unwind and reset after the hectic holiday season. div.UniversalContentCardstyles__UCCContainer-sc-zezg1y-8 > div.UniversalContentCardstyles__UCCTextBlock-sc-zezg1y-0 > a > h3.UniversalContentCardstyles__UCCSubheadline-sc-zezg1y-2
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
TRAVEL div.UniversalContentCardstyles__UCCTagsContainer-sc-zezg1y-4 > div.UniversalContentCardstyles__UCCPrimaryTag-sc-zezg1y-5 > a > div.Tagstyles__TagContainer-sc-o7ixv6-0
LOAD MORE div.UCCPatternstyles__UCCPatternButtonContainer-sc-7uvllb-2 > button.Buttonstyles__ButtonContainer-sc-1e79xnn-0 > div.Buttonstyles__ButtonContent-sc-1e79xnn-1 > div.Buttonstyles__ButtonText-sc-1e79xnn-2

These are opportunities to improve the legibility of your content.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Go to Navigation div.Headerstyles__HeaderContainerWrap-sc-1a96frj-1 > div.Headerstyles__HeaderContainer-sc-1a96frj-2 > div.Headerstyles__HeaderRightSection-sc-1a96frj-13 > button.Headerstyles__HeaderHamburgerButton-sc-1a96frj-4
Go to Navigation div.Headerstyles__HeaderContainer-sc-1a96frj-2 > div.Headerstyles__HeaderRightSection-sc-1a96frj-13 > button.Headerstyles__HeaderHamburgerButton-sc-1a96frj-4 > a.Headerstyles__HeaderMenuTrigger-sc-1a96frj-7

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
ARIA attributes are used as specified for the element's role
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Links have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Uses ARIA roles only on compatible elements
Identical links have the same purpose.
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Form elements have associated labels
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Image elements do not have `[alt]` attributes that are redundant text.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
100

Best Practices

General

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No browser errors logged to the console
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Format your HTML in a way that enables crawlers to better understand your app’s content.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Document has a meta description
Page has successful HTTP status code
Links are crawlable
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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